About Destrier Group
The science of human performance. The advantage of better decisions.
Technology is changing how we work, compete and create value. But organisational advantage still depends on people. How they think. How they make decisions. How they lead. How they work together. And increasingly, how they work alongside artificial intelligence.
Destrier Group is an Australian-founded advisory and human performance business applying organisational psychology, cognitive science and behavioural research to some of the most consequential challenges facing organisations and individuals.
We help boards strengthen judgment, executives manage workforce and transformation risks, and individuals understand and develop the capabilities that set them apart in a rapidly changing world.
Our purpose is to turn human insight into measurable advantage.
What We Do
We believe the next competitive advantage will come not simply from adopting better technology, but from designing better relationships between people, work and intelligent systems.
Our work brings psychological science into practical application through three specialist offerings.
Destrier Consult, REINA Performance, and G’Day Reina.
Our Approach
Science first. Commercially relevant. Human-centred.
We combine rigorous psychological assessment with an understanding of organisational strategy, leadership and changing workforce demands.
Our approach focuses on three principles:
Measure what matters. Understand the human capabilities, behaviours and risks that influence performance.
Design for better outcomes. Apply behavioural and cognitive science to improve decisions, leadership, work design and human–AI collaboration.
Build lasting capability. Strengthen the expertise, judgment and adaptability that organisations and individuals need to succeed.
We don't believe technology alone creates competitive advantage. Nor do we believe traditional leadership models are sufficient for the changes underway.
The opportunity lies in understanding how human capability and intelligent technology can work better together.
Australian Founded. Asia-Pacific Perspective.
Destrier Group brings an Australian foundation and an Asia-Pacific perspective to the science of organisational performance.
Our work recognises that leadership, decision-making, talent and workplace behaviour are shaped by organisational and cultural context.
We bring together internationally established psychological research, regional insight and practical application to help clients navigate complexity with greater confidence.
Better Human Performance. Stronger Organisational Advantage.
The organisations that succeed will not necessarily be those with the most technology.
They will be those that understand how to use it without losing the human expertise, judgment and capability that create lasting value.
That is where Destrier Group works.
Arabella Steel
Founder & Director | Registered Organisational Psychologist
Arabella Steel is a registered Organisational Psychologist (AHPRA) and member of the Australian Psychological Society, with over two decades of experience in executive assessment, leadership development, organisational performance and board advisory across the Asia-Pacific.
As Founder of Destrier Group, she applies organisational psychology, cognitive science and behavioural research to strengthen decision quality, leadership capability and human performance. Her work focuses increasingly on human–AI interaction, cognitive risk and the design of effective human–AI partnerships.
Arabella holds a Master of Organisational Psychology from Macquarie University and is a member of its Performance and Expertise Research Centre, where she presented research in 2023 and 2025.
An internationally published author on inclusive leadership and board effectiveness, Arabella combines academic research with experience in global executive search and strategic talent advisory. She holds advanced certifications in Hogan, SHL OPQ32 and Cognadev psychometric assessments and is a Certified Organisational Coach (IECL).
Through Destrier Group, she helps boards, organisations and individuals translate psychological science into stronger capability, better decisions and sustained competitive advantage.